Download Print this page

HP LaserJet 4 - Plus/m Plus Printer Combined Service Manual: Warmup Period; Standby Period; Powersave

Service manual.
Hide thumbs
   
1
2
3
4
Table of Contents
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453

Advertisement

Warmup Period

The Warmup period begins when the printer's power is turned
ON, and ends when the fusing roller temperature reaches 172° C.
When the printer is switched ON, the exhaust fan (FM1) begins
low-speed rotation and the fusing roller maintains 172° C. The
DC controller then switches the main motor (M1) ON, and applies
AC high voltage to the primary charging roller to remove any
residual charge from the photosensitive drum. Negative high
voltage is applied to the transfer roller to clean toner build-up
from the roller. When the fusing roller reaches 172° C, the main
motor, and AC high voltage, are turned OFF.
After the power is switched on, the Main Motor (M1) and the
pickup motor (M2) turn for approximately 4 seconds to clear the
paper path. The motors stop rotation when the fuser reaches
172° C.
After the printer warms up, the message 00 READY is displayed,
the printer goes "on-line," and the control panel keys become
operational.

Standby Period

When the Warmup period is completed, the message 00 READY is
displayed. At this point the printer is in the Standby period. This
indicates that the printer is ready for printing. The fusing roller
remains at a constant temperature of 172° C, and the exhaust fan
continues operating at low-speed rotation.

PowerSave

When the printer enters PowerSave mode, fuser current is shut
down, allowing the fuser to cool to room temperature without
posting a 50 SERVICE error. The exhaust fan continues to operate
at low speed.
Functional Overview 5-37

Advertisement

Troubleshooting

   Also See for HP LaserJet 4 - Plus/m Plus Printer

   Related Manuals for HP LaserJet 4 - Plus/m Plus Printer

This manual also for:

Laserjet 5m

Comments to this Manuals

Symbols: 0
Latest comments: